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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 507 (Suspension Control System - Suspension Leveling) >> Diagnostic Information and Procedures >> Rear of Vehicle High >> Circuit/System Verification

Circuit/System Verification

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Engine running, command the exhaust valve solenoid ON and OFF with a scan tool. Listen for the exhaust valve clicking.

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